Can anyone recommend a suitable puller for the job... just about to delve into the cases of my 1971 247?

Previously posted links to tools used aren't working.

Thanks in advance.

This is what I made to remove Cota 348 primary drive pinions. It worked a treat. The 247 drive gear is very similar to the 348.

Nice DIY engineering there. I was hoping to buy something suitable, but there's not a great deal of clearance under the gear and the force reputedly required necessitates a pretty robust tool.

Have a read of this post .. 

 

 

There are gear pullers made for automotive application. Feetupfun has fabricated a workman like puller which with a little work you could either make or as the mechanics to remove the gear are demonstrated a skilled engineer should be able to perform the task. Hope you have sone luck.

I have one of these kits and it worked fine to remove the drive gear on my 247

https://www.machinemart.co.uk/p/cht249-14-pce-bearing-separator-angle-ge/

Edited January 5, 20197 yr by woody

Thanks again everyone - some really helpful advice and guidance (as always). I think I'll try the Machine Mart style puller kit and see how it goes from there - hopefully this, in combination with the hints and tips posted by others, should see the gear off and the job done.

I made a machined part which fits over the primary drive and allows a large puller to "Grab" it. Similar to the one pictured but more chunky.

 

You are welcome to borrow it, I did have some images, but I can't find them, you'll have to use a puller, but even a monster puller fits using this adaptation.

Sounds interesting and a VERY kind offer. I'll try removing the gear with the tool I've ordered (arriving Wednesday), if not, I might take you up on the offer as I have a large/HD puller in the toolbox.

Thanks again.

OK, let us know how it goes.

It is a proper b'stard to get off.

Found an image

 

I borrowed the puller, but I still have the adapter as pictured.

 

That adapter looks just about perfect! As I've just knackered a second puller, I think it's time to get something more substantial in the mix.

Have sent you a PM. Hope this is OK and thanks again.

A MASSIVE thank you to Yamanx for his generosity lending me his puller adapter.

Have to say, an amazing piece of engineering that made removing the gear a relative piece of cake... still can't believe how much force was required to separate the gear from the crank (air impact socket on a 3' breaker bar, plus gentle persuasion with a hammer - shocking the puller/crank taper at  various degrees of tightening force), which I'd have failed miserably at were it not for the adapter!

A true gentleman and a credit to the sport and motorcycling in general.

Thanks so much.

Edited February 5, 20197 yr by riffraffretro